<template>
   <!--banner轮播-->
          <div class="swiper-container" :ref="bannerSwiper">
            <div class="swiper-wrapper">
             <div class="swiper-slide" 
             v-for="(banner,index) in bannerList" 
             :key="banner.id">
                  <img style="text-align: center" :src="banner.imgUrl"/>
                </div>
             </div>
               <!-- 如果需要分页器 -->
               <div class="swiper-pagination"></div>

               <!-- 如果需要导航按钮 -->
              <div class="swiper-button-prev"></div>
                <div class="swiper-button-next"></div>
                  </div>
</template>

<script>
import Swiper from 'swiper'
export default {
  name: 'SwiperLoop',
  props:['bannerList','bannerSwiper'],
  watch:{
       bannerList:{
          immediate:true,//这里加immediate没任何意义，只是为了让两遍代码保持一致
          handler(newVal,oldVal){
              this.$nextTick(()=>{
                  new Swiper (this.$refs[this.bannerSwiper], {
                    //  direction: 'vertical',垂直切换选项
                    loop: true, // 循环模式选项
                    
                    // 如果需要分页器
                    pagination: {
                    el: '.swiper-pagination',
                    },
                    
                    // 如果需要前进后退按钮
                    navigation: {
                    nextEl: '.swiper-button-next',
                    prevEl: '.swiper-button-prev',
                    },
                    
                    // 如果需要滚动条
                    // scrollbar: {
                    // el: '.swiper-scrollbar',
                    // },
                })        
              })
          }
       }
  }
}
</script>

<style lang="less" scoped>

</style>
